Being TA is much better than being RA. I am switch back to being a TA (teaching assistant) 5 semesters of being RA (research assistant). It is a time consuming job specially when I have to supervise 5 lab sessions each week and grade lab reports for more than 80 people. In the meanwhile, I have to find time for my research work. Yet, I am happier than before. Unlike when I was RA, I get people to talk to and interact with, a few hours a week. It feels much better.